body,
div,
span,
header,
footer,
nav,
section,
aside,
article,
ul,
dl,
dt,
dd,
li,
a,
p,
h1,
h2,
h3,
h4,
h5,
h6,
i,
b,
textarea,
button,
input,
select,
figure,
figcaption {
  padding: 0;
  margin: 0;
  list-style: none;
  font-style: normal;
  text-decoration: none;
  border: none;
  font-family: 'Microsoft Yahei', sans-serif;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;

  &:focus {
    outline: none;
  }
}

.clearfix::after {
  content: '';
  display: block;
  clear: both;
  height: 0;
  line-height: 0;
  visibility: hidden;
}

.clearfix {
  zoom: 1;
}

.left {
  float: left;
}

.right {
  float: right;
}
